The file 'Ender 2 3 Cr10 40mm Part Fan Duct 3D Printer Model' is (STL) file type, size is 129.2KB.
On my quest to make a completely silent desktop printer (within arms reach of where i sit 9 hours per day) i needed a part cooling fan adapter that would accept a 40mm noctua fan. I couldn't find anything simple that i liked, so i designed my own.
This fan duct bolts right where the stock part cooling fan bolts. You can even reuse the M2 bolts, but the front 2 will need to be shortened. the fan is mounted with 4 M3 bolts.
40_mm_fan_shroud.STL | 306.8KB |